HOME >> BIOLOGY >> NEWS
Growth in the sea comes down to a struggle for iron

treaming out into a long, narrow strip. The major night-time task was to steam in crisscrossing transects to re-do the map of the patch because of this rapid change," says Wells.

The two vessels worked together in the patch for 12 days but operated independently most of the time. New security guidelines prohibit scientists from boarding or even sharing samples or equipment with a vessel from another country.

The American team went to work lowering equipment over the side to collect water samples. They analyzed water chemistry, nutrients, and microorganism diversity. Working to assist their Japanese colleagues on board both vessels, they made these measurements to characterize how the phytoplankton responded to the iron enrichment over a 32-day period. They also ran experiments on deck to learn how available the iron was in the patch, how diatoms were growing and coming together in multi-cellular aggregations. They studied the sinking rate, the slow process through which aggregations of diatoms sink into the deep sea, taking their carbon with them.

The Kilo Moana returned to Hawaii after spending 42 days at sea. Early results suggest that the struggle for iron may indeed follow something like what happens in the soil. Wells and his colleagues are evaluating the data they collected and conducting additional laboratory experiments.

UMaine scientists are planning to return to the Pacific in 2007, but they have a different destination in mind. Work by Japanese and Canadian researchers has already shown that the consequences of iron additions may vary from the eastern to the western North Pacific. Even with additional iron, large phytoplankton cells in the east do not appear to grow as readily. Since prevailing winds tend to blow iron rich dust off the Asian continent into the Pacific, it may be that phytoplankton closer to the source of that dust may be primed to respond differently.

Wells and his colleagues will be studying the possibili
'"/>

Contact: Mark Wells
mlwells@maine.edu
207-581 -4322
University of Maine
25-Feb-2005


Page: 1 2 3 4 5

Related biology news :

1. Growth factors and environment combine to increase brain maturation
2. Growth factor signals influence balance between normal growth and cancerous growth
3. Growth factor triggers growth of new blood vessels in the heart
4. Growth factor-promoting angiogenesis expressed in tumor cells and normal neurons
5. Growth hormone is made in the brain, report scientists
6. Growth hormone, obesity can trigger sleep apnea in some kids
7. Growth in biomass could put US on road to energy independence
8. Growth disorder gene plays a big role in normal size variation
9. Growth factor in baby formula could reduce NEC, most devastating GI disease in preemies
10. Growth of common skin cancer blocked in gene-switch mice
11. Growth factors confer immortality to sperm-generating stem cells

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:3/27/2021)... ... March 25, 2021 , ... Phlexglobal announced ... Planet Group, has selected Phlexglobal and its innovative regulatory SaaS software, PhlexSubmission, as ... a comprehensive review of five regulatory software companies, with the review team including ...
(Date:3/27/2021)... ... 25, 2021 , ... The 2021 Virtual Conference on Clinical Trial Supply-Europe ... More and more, clinical trial supply conferences are featuring speakers and forums that ... Asymmetrex’s founder and CEO, James L. Sherley, M.D., Ph.D., presented a talk ...
(Date:3/23/2021)... ... March 23, 2021 , ... G-CON Manufacturing (G-CON), the ... by Matica Biotechnology (Matica Bio), a contract development and manufacturing organization (CDMO) specializing ... the cleanroom build out for its new GMP production facility in College Station, ...
Breaking Biology News(10 mins):
(Date:3/27/2021)... ... March 24, 2021 , ... ... Life Sciences and Healthcare firms of all sizes, adds depth to its team ... specialist. Pardillo, who earned his doctorate in computational chemistry from Florida International University ...
(Date:3/27/2021)... ... March 24, 2021 , ... ABI Wellness, ... and reporting approach designed under CEO Mark Watson, today announced a webinar dedicated ... featuring guest speakers Dr. Cameron Clark, Neuropsychologist and Founder of Sharp Thinking, and ...
(Date:3/27/2021)... ... ... The Xtalks editorial team is pleased to announce the launch of the ... joined by editorial team members Ayesha Rashid, Sydney Perelmutter and Mira Nabulsi to discuss ... including insights from industry experts. , The Xtalks Life Science podcast will feature ...
(Date:3/23/2021)... Conn. (PRWEB) , ... March 23, 2021 , ... ... develops solutions for characterizing microbiome populations down to the strain level, recently unveiled ... applications. , Not all microbes are created equal: some are easy to ...
Breaking Biology Technology:
Cached News: